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Developing well‐crystallized light‐absorbing layers remains a formidable challenge in the progression of kesterite Cu2ZnSn(S,Se)4 (CZTSSe) solar cells. A critical aspect of optimizing CZTSSe lies in accurately governing the high‐temperature selenization reaction. This process is intricate and demanding, with underlying mechanisms requiring further comprehension. This study introduces a precursor microstructure‐guided...
Lithium metal batteries (LMBs) with high energy density have received widespread attention; however, there are usually issues with lithium dendrite growth and safety. Therefore, there is a demand for solid electrolytes with high mechanical strength, room‐temperature ionic conductivity, and good interface performance. Herein, a 3D cross‐linked metal‐organic framework (MOF)‐derived polymer solid electrolyte...
Perovskites
In article number 2307960, Xiao Wang, Longbin Qiu, and co‐workers developed an ultrahigh humidity treatment strategy to facilitate the effective diffusion of formamidinium iodide from the top surface to the buried bottom interface on the sequential vapor‐deposited bilayer structure. High‐efficiency and stable perovskite solar cells deposited by a sequential vapor deposition process with...
The quality of two‐step processed perovskites is significantly influenced by the distribution of organic amine salts. Especially, modulating the distribution of organic amine salts remains a grand challenge for sequential vapor‐deposited perovskites due to the blocking effect of bottom compact PbI2. Herein, an ultrahigh humidity treatment strategy is developed to facilitate the diffusion of formamidinium...
Hierarchical architecture engineering is desirable in integrating the physical‐chemical behaviors and macroscopic properties of materials, which present great potential for developing multifunctional microwave absorption materials. However, the intrinsic mechanisms and correlation conditions among cellular units have not been revealed, which are insufficient to maximize the fusion of superior microwave...
Cation‐intercalated vanadates, which have considerable promise as the cathode for high‐performance potassium metal batteries (PMBs), suffer from structural collapse upon K+ insertion and desertion. Exotic cations in the vanadate cathode may ease the collapse, yet their effect on the intrinsic cation remains speculative. Herein, a stable and dendrite‐free PMB, composed of a Na+ and K+ co‐intercalated...
Green fabrication of superhydrophobic surface by water‐based processing is still challenging, because introduction of the substances with hydrophilic moieties compromises its superhydrophobicity. Herein, a plasmon‐driven photochemical reduction reaction under ultraviolet light (UVA) irradiation is first discovered and is applied to deoxygenation of hydrophilic organic adsorbates on rough nano‐Ag coating...
Confined 1T‐VSe2 Ferromagnetic Nanoparticles
In article number 2300122, Cailei Yuan, Shouguo Wang, and co‐workers report confined 1T‐VSe2 ferromagnetic nanoparticles in amorphous carbon matrix for external magnetic fields assisted highly efficient oxygen evolution reaction (OER). Benefiting from the confined structure and the high‐efficient spin‐related OER kinetics under external magnetic fields,...
As a clean and effective approach, the introduction of external magnetic fields to improve the performance of catalysts has attracted extensive attention. Owing to its room‐temperature ferromagnetism, chemical stability, and earth abundance, VSe2 is expected to be a promising and cost‐effective ferromagnetic electrocatalyst for the accomplishment of high‐efficient spin‐related OER kinetics. In this...
Hydrogenolysis is an effective method for converting polyolefins into high‐value chemicals. For the supported catalysts commonly used, the size of active metals is of great importance. In this study, it is discovered that the activity of CeO2‐supported Ru single atom, nanocluster, and nanoparticle catalysts shows a volcanic trend in low‐density polyethylene (LDPE) hydrogenolysis. Compared with CeO...
Heterojunctions coupled into micro‐mesoscopic structures is an attractive strategy to optimize the light harvesting and carrier separation of semiconductor photocatalysts. A self‐templating method of ion exchange is reported to synthesize an exquisite hollow cage‐structured Ag2S@CdS/ZnS that direct Z‐scheme heterojunction photocatalyst. On the ultrathin shell of the cage, Ag2S, CdS, and ZnS with Zn‐vacancies...
Electrochemical Nc reduction has been regarded as one of the most promising approaches to producing ammonia under mild conditions, but there are remaining pressing challenges in improving the reaction rate and efficiency. Herein, an unconventional galvanic replacement reaction is reported to fabricate a unique hierarchical structure composed of Fe3O4‐CeO2 bimetallic nanotubes covered by Fe2O3 ultrathin...
The prosperity of smart portable microdevices urgently requires an advanced integrated microsystem equipped with cost‐effective safe microbatteries and ultra‐stable sensitive sensors. However, the practical application of smart microdevices is limited by complex active materials with single function. Here, the two‐dimensional (2D) mesoporous nanosheets of polyaniline decorated on graphene with large...
The incorporation of a transition metal into a noble metal for the formation of nanoalloys paves a potential way to modulate the electronic structures and spatial arrangement modes, thereby manipulating the target catalysis under the desired reaction pathways. Herein, a top‐down synthetic route to fabricate IrCo nanoalloys with delicately designed compositions and morphologies at an extremely low...
Alkali‐metal/sulfur batteries hold great promise for offering relatively high energy density compared to conventional lithium‐ion batteries. By providing viable sulfur composites that can be effectively used, carbonaceous hosts as a key component play critical roles in overcoming the preliminary challenges associated with the insulating sulfur and its relatively soluble polysulfides. Herein, a comprehensive...
MnO2‐based material is one of the most promising cathode candidates of aqueous zinc‐ion batteries (ZIBs), but its commercialization is hindered by the sluggish reaction kinetics and poor structural stability. Herein, a hierarchical framework consisting of core–shell structured carbon nanotubes@K‐birnessite‐MnO2 enwrapped by graphene/carbon black bicomponent networks (CNT@KMO@GC) via a simple method...
Aqueous Zinc‐Ion Batteries
In article number 2104557, Lei Li and co‐workers develop a solution‐processed method to fabricate a hierarchical K‐birnessite‐MnO2‐carbon framework vividly depicted by the dragon flying in the clouds. The dragon with scales represents carbon nanotubes decorated by K‐birnessite‐MnO2 porous nanoflakes, the clouds stand for graphene, and the pearls in the dragon claws are carbon...
With the accelerating update of advanced electronic gadgets, a great deal of attention is being paid today to the function integration and intelligent design of electronic devices. Herein, a novel kind of multitasking 3D oxygen‐deficient WO3–x ∙ 2H2O/Ag/ceramic microscaffolds, possessing simultaneous giant energy density, ultrahigh mechanical strength, and reversible electrochromic performance is...
The rational synthesis of single‐layer noble metal directly anchored on support materials is an elusive target to accomplish for a long time. This paper reports well‐defined single‐layer Pt (Pt‐SL) clusters anchored on ultrathin TiO2 nanosheets—as a new frontier in electrocatalysis. The structural evolution of Pt‐SL/TiO2 via self‐assembly of single Pt atoms (Pt‐SA) is systematically recorded. Significantly,...
Sodium and potassium are considered to be the most promising anode candidates due to their easy availability, low‐cost and similar chemical properties to lithium. Here, novel 3D accordion‐like fluorinated graphite nanosheets (FGNSs) are reported as cathodes for sodium primary batteries (SPBs) and potassium primary batteries (PPBs). The FGNSs‐x cathode exhibits unprecedented power and energy density...
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